FN AA-77
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| AA-77 | |
|---|---|
| File:Ksp58d sv600.jpg AA-77LRS | |
| Type | General-purpose Machine Gun |
| Place of origin | Sieuxerr |
| Service history | |
| In service | 1958-Present |
| Used by | Sieuxerr |
| Production history | |
| Designer | Fabrique Nationale d'Hersta (FN) |
| Designed | 1958 |
| Manufacturer | FN Herstal |
| Produced | 1958-Present |
| Variants | See variants |
| Specifications (AA-77LRS) | |
| Weight | 8.6 kg |
| Length | 1,180 mm |
| Barrel length | 530 mm |
| Cartridge | 6.5x55mm |
| Action | Gas operated, open bolt |
| Rate of fire | Sustained rate of fire: 100 RPM Rapid rate of fire: 200 RPM |
| Effective firing range | 600 m (Point target, bipod) 800 m (Point target, tripod) |
| Feed system | Disintegrating-link belt |
| Sights | 300-1,800 meter adjustable iron sights |
The AA-77 (Also known as the FN MAG or Mle 58) is Sieuxerrian general purpose machine gun. It was designed and developed by Fabrique Nationale d'Hersta in the 1950s as a replacement for older machine guns that had been in service since the inter-war era.
Design details
The AA-77 is an open-bolt, air-cooled belt-fed machine gun firing the 6.5x55mm or 7.5x54mm cartridge. It uses a long-stroke piston system, utilizing gases from the expended cartridge to cycle the bolt.
Variants
- Mle 58A
- Adopted as the standard general purpose machine gun of the Sieuxerrian Army. Most models updated to Mle 58B2 standard.
- Mle 58C
- Right handed feed model designed to be a coaxial machine gun for armored vehicle.
- Mle 58C2
- Secondary left handed feed model designed for to be a coaxial machine gun.
- Mle 58AM
- Air mobile variant designed to be used as a helicopter door gun. Supplied with a kit to be configured for ground operations in an emergency use.
- Mle 58B2
- Modernized A model adopted in the late 1970s. Either referred to as the 58B or the 58B2.
- Mle 58L
- Lightweight machine gun. Overall weight reduced under 10 kilograms.